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Include only the used DH groups in the build

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This reduces the binary size by 3 kB or so when WPS is included in
the build, but IKEv2 is not.
This commit is contained in:
Jouni Malinen 2009-10-11 15:24:40 +03:00
parent b3ad11bb80
commit dd01b1ff9d
3 changed files with 19 additions and 1 deletions
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12
src/crypto/dh_groups.c
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@ -19,6 +19,8 @@
#include "dh_groups.h"
#ifdef ALL_DH_GROUPS
/* RFC 4306, B.1. Group 1 - 768 Bit MODP
* Generator: 2
* Prime: 2^768 - 2 ^704 - 1 + 2^64 * { [2^638 pi] + 149686 }
@ -63,6 +65,8 @@ static const u8 dh_group2_prime[128] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};
#endif /* ALL_DH_GROUPS */
/* RFC 3526, 2. Group 5 - 1536 Bit MODP
* Generator: 2
* Prime: 2^1536 - 2^1472 - 1 + 2^64 * { [2^1406 pi] + 741804 }
@ -95,6 +99,8 @@ static const u8 dh_group5_prime[192] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};
#ifdef ALL_DH_GROUPS
/* RFC 3526, 3. Group 14 - 2048 Bit MODP
* Generator: 2
* Prime: 2^2048 - 2^1984 - 1 + 2^64 * { [2^1918 pi] + 124476 }
@ -503,6 +509,8 @@ static const u8 dh_group18_prime[1024] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};
#endif /* ALL_DH_GROUPS */
#define DH_GROUP(id) \
{ id, dh_group ## id ## _generator, sizeof(dh_group ## id ## _generator), \
@ -510,14 +518,16 @@ dh_group ## id ## _prime, sizeof(dh_group ## id ## _prime) }
static struct dh_group dh_groups[] = {
DH_GROUP(5),
#ifdef ALL_DH_GROUPS
DH_GROUP(1),
DH_GROUP(2),
DH_GROUP(5),
DH_GROUP(14),
DH_GROUP(15),
DH_GROUP(16),
DH_GROUP(17),
DH_GROUP(18)
#endif /* ALL_DH_GROUPS */
};
#define NUM_DH_GROUPS (sizeof(dh_groups) / sizeof(dh_groups[0]))